2007-05-23 13:26:37 · 6 answers · asked by Michel G 1 in Science & Mathematics ➔ Biology
Those are the stages in a cell's life cycle.
G1 stands for the first stage of growth, G2 for even more growth, and S is when its preparing for mitosis or cell division
2007-05-23 13:43:44 · answer #1 · answered by qbanma19 1 · 0⤊ 0⤋
G1 refers to the first growth stage of a cell's life cycle. S is the synthesis phase where DNA is synthesized. G2 Is the last and final growth phase before mitosis and poptosis occurs. After mitosis happens, the resulting cells each start there own G1 phase.
2007-05-23 20:41:02 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The G1 stage stands for "growth phase". The S stage stands for "Synthesis". This is the stage when DNA replication occurs. OR in other words , S phase - this is where the DNA(chromosomes) are duplicated . The G2 stage stands for "cell continues to grow ".
2007-05-23 21:56:19 · answer #3 · answered by Anonymous · 0⤊ 0⤋
They are part of the cell cycle known as interphase.
Interphase is the longest part of the cell's life (this is when it is not dividing). It is divided into three different parts.
G1 and G2 are periods of growth when the cell is growing and its organelles are maturing. S is the synthesis phase where the cell makes an extra copy of the DNA (so that when the cell is ready to divide each new cell will have a complete set of DNA)
2007-05-23 20:34:57 · answer #4 · answered by Jen B 2 · 0⤊ 0⤋
These are the steps before mitosis. (called interphase).
If I remember drom AP biology,
G1= cell preparation (usually neuron cells are suspended here).
S= DNA replication
G2= organelle replication. (usually called a "check point").
good luck.
2007-05-23 20:38:57 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Different phases in the cell cycle.
2007-05-23 20:46:49 · answer #6 · answered by sdc_99 5 · 0⤊ 0⤋